Patents by Inventor Kjell V. Mattsson

Kjell V. Mattsson has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 6393991
    Abstract: A multipurpose warhead utilizes a shaped charge device with a shaped charge liner having an included angle in excess of 70° sealing an internal cavity that contains an explosive. A detonatior system having a selectable plurality of outputs contacts the explosive. Peripheral detonation of the explosive generates a high speed, small diameter, penetrating jet that typically includes about 90% of the liner mass. Central point source detonation of the explosive generates a larger diameter, slower moving, explosively formed penetrator. A combination of plural peripheral point detonation and central point source detonation generates multiple fragments. An ability to select detonation type in the field enables a single warhead to be effective against multiple target types. The shaped charge liner may optionally be a composite material having a jet forming portion and an effect forming portion.
    Type: Grant
    Filed: June 13, 2000
    Date of Patent: May 28, 2002
    Assignee: General Dynamics Ordnance and Tactical Systems, Inc.
    Inventors: Ronald J. Funston, Kjell V. Mattsson, Neal N. Ouye
  • Patent number: 5269223
    Abstract: A self-powered fuze apparatus for a projectile containing an explosive charge which comprises a first housing containing a mechanical safety device for releasably preventing undesired movement of a detonator cup holder containing a detonator from an unarmed to an armed position wherein the detonator cup is shielded from the charge to be exploded in the unarmed position and the detonator cup communicates with the charge only in the armed position and the second housing adjacent the first housing containing an electronic safety means for sensing target impact and projectile launch and selectively passing a piezoelectrically generated firing current to the detonator cup only upon sensing a predetermined magnitude target impact only within a predetermined time after sensing the launch acceleration and only when the electronic means is electrically and mechanically connected to the detonator cup in the armed position.
    Type: Grant
    Filed: October 6, 1992
    Date of Patent: December 14, 1993
    Assignee: Ems-Patvag
    Inventors: Kjell V. Mattsson, Robert Rehmann, Rudolf Zaugg